EN-
20
6. OTHER BUTTON FUNCTION
6-1 YELLOW BUTTON
6-1-1 DISPLAY BACKLIGHT
Press the yellow LIGHT BUTTON, to turn the backlight on.
Press the button again to turn the backlight off otherwise the
backlight will automatically turn off after approx. 30 sec.
6-1-2 BATTERY VOLTAGE CHECK
Press the yellow LIGHT BUTTON > 2 sec and the display
will show the internal Battery Voltage. The minimum useable
battery voltage is 7.00V. Replace the battery when the
voltage is 7.00V or less.